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You are here: OUSL / Faculty of Natural Sciences / Dept. of Chemistry

Ms. M. D. J. S. Saparamadu

B.Sc, M.Sc, M.Phil (Colombo)

Senior Lecturer (G I)

Department of Chemistry
  • Colombo Regional Center, 3rd floor, Science and Technology building, Room No : W5
  • 112881129, Ext: 629
  • mdsap@ou.ac.lk

Analytical Chemistry
Nutrient management in Hydroponics

Nutrient management in Hydroponics, Hardness removal in water

Analytical Chemistry
Instrumental methods of Chemical analysis

Ongoing Research

  1. Anopheline mosquito fauna of Sri Lanka: Current prevalence, bionomatics and their genetic variability in mitochondrial DNA COI gene.
  2. Preliminary investigation on removal of colour of water in Chawakachcheri area using charcoal of rice hull and coconut shell.

Community projects

  1. Community project on popularization of the research innovation- nutrient packs and simplified hydroponics system – Funded by NSF (Technical grant) – 2013-2015
  2. Community project on popularization of the research innovation- nutrient packs and simplified hydroponics system in Government maternity homes- Funded by Ministry of Health and Indigenous Medicine and implemented by Colombo Municipality Council, 2015

 

(i) Publications of the Open University of Sri Lanka (OUSL)

    1.     CHU 2125 Analytical Chemistry part 1- Statistics in Analytical Chemistry
    1.     CMU 3123 Analytical Chemistry –  Unit 1: Classical methods 1
    2.     CMU 3123 Analytical Chemistry –  Unit 2 :Classical methods 11
    3.     CMU 1121 Practical Chemistry – Titrimetry
    4.     PSC 1222 Basic techniques in Chemistry, Unit 2:Measurement and errors
    1.     PSC 1222 Basic techniques in Chemistry, Unit 3:Acids and bases
    2.     PSC 1222 Basic techniques in Chemistry, Unit 4:Organic molecule and radio isotopes
    1.     CMF 2306- Chemistry for Foundation students- chapters 2-6
    2.     Hydroponics – for Faculty of Agricultural Engineering
    3.     BPU 1110 Water used in the laboratory – for Dept. of Health Sciences
    1.     CYTU 5302- Analytical Chemistry Classical methods I 
    2.     CYTU 5302- Analytical Chemistry Classical methods II

    13.     CYU 5308-Radioanalytical Techniques

 

(ii) Chapter 9- Common Apparatus- A guide for beginners in research-

 Publication of the Sri Lanka Association for Advancement of Science (SLAAS), 2014.

(iii)Teacher training manual for  capacity building of science teachers by giving them hands- on training in laboratories towards development of core skills, abilities and attributes for teaching science and on laboratory safe practices in schools – Part I – Chemistry

(Coordinated by the National Science Steering Committee of Ministry of education  and funded by National Science Foundation)


  • Hydroponics Systems Used Under Natural Climatic Conditions – 2010
  • Journal of Tropical Agriculture – Low cost hydroponics package for developing countries in the tropics- 2010
  • Silicon supplementation by rice hull leachate on the growth, yield, fruit parameters and antracnose disease resistance capsicum ‘Muria F1’. International Journal in multidisciplinary Studies (IJMS), Volume I, 2014.
  •  Enhanced resistance to anthracnose disease in chili pepper (Capsicum annuum L.) by amendment of the nutrient solution with silicon, Journal of Horticultural Science and Biotechnology, 90 (5) 557–562 (2015)
  • The mechanisms underlying the anthracnose disease reduction by rice hull as a silicon source in capsicum (Capsicum annuum ) grown in simplified hydroponics. Elsevier Proceedia Food Science 6 (2016) 147-150
  • Some investigations on copper and cadmium decontamination of waste waters by rice hull ash ‹¨« Annual sessions of Sri Lanka Association for Fisheries and Aquatic Resources, 1995
  • Development of a low cost and productive new nutrient formulation for simplified hydroponics using commercial grade chemicals ‹¨« PGIA Congress, 2008
  • Development of nutrient formulations for different crop growth stages in simplified hydroponics ‹¨« Annual sessions of SLAAS, 2008
  • Evaluation of the main limitations of Albert’s Solution as a hydroponics fertilizer and optimization of its use ‹¨« Annual sessions of SLAAS, 2008
  • Annual sessions University of Kelaniya ‹¨« 2011 ‹¨« Net photosynthetic production and potential carbon assimilation capacity of mangroves of Kadolkele in Negombo estuary Sri Lanka
  • Potential of simplified hydroponics technology as a resource efficient urban house hold food production system. In   Proceedings:  International conference on Sustainable built environment (ICSBE), 2012.
  • Reduction of water hardness using plant parts. In   Proceedings:  Annual  Academic Sessions of the Open University of Sri Lanka, 2013.
  • A novel approach for growing capsicum: a hydroponics system treated with rice hull leachate for enhanced performance of Capsicum annum L. In   Proceedings:  Peradeniya University international research sessions, Sri lanka, 2014.
  • Effect of silicon on antracnose disease in hydroponically grown Capsicum annum L. cv Awulegama. In   Proceedings:  Peradeniya University international research sessions, Sri lanka, 2014.
  • The mechanisms underlying the anthracnose disease reduction by rice hull as a silicon source in capsicum (Capsicum annuum ) grown in simplified hydroponics. Elsevier Proceedia Food Science 6 (2016) 147-150
  1.     Patent No. 15441

Title –     A cost effective hydroponics formulation with a buffer

  1.     Patent No. 15442

Title –     Cost effective hydroponics formulations with a buffer for different growth stages    of plants – “Grow” , “Bloom”, “Fruiting”



Preliminary investigation on removal of colour of water in Chawakachcheri area using charcoal of rice hull and coconut shell.

  •  Member, Sri Lanka Association for Advancement of Science (SLAAS)
  •  Member, Institute of Chemistry Sri Lanka

  • Merit award ‹¨« Laboratory Management Technology course conducted by NIBM
  • Technology Excellence award (2015) – National Science Foundation (NSF), Sri Lanka
  •  Member, Sri Lanka Association for Advancement of Science (SLAAS)
  •  Member, Institute of Chemistry Sri Lanka

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PO Box 21, The Open University of Sri Lanka, Nawala, Nugegoda.
Email: pio@ou.ac.lk
Phone: +94 11 288 1000